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NOAA/WDS Paleoclimatology - Arabian Sea denitrification during the past 1 Ma

browse graphicPaleoclimatology - Paleoceanography
This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Paleoceanography. The data include parameters of paleoceanography with a geographic location of Indian Ocean. The time period coverage is from 949300 to 4082 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data.
  • Cite as: Altabet, M.A.; Murray, D.W.; Prell, W.L. (1999-07-01): NOAA/WDS Paleoclimatology - Arabian Sea denitrification during the past 1 Ma. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/n8gg-4d63. Accessed [date].
  • Please refer to Credit tab for full citation information.
noaa-ocean-2536
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DistributorNOAA National Centers for Environmental Information
ncei.info@noaa.gov
Dataset Point of Contact NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Dataset Point of Contact Data Center Contact
NOAA World Data Service for Paleoclimatology
828-271-4800
paleo@noaa.gov
Coverage DescriptionDate Range: 949300 14C yr BP to 3700 14C yr BP; Date Range: 949300 cal yr BP to 4082 cal yr BP;
Time Period-947350 to -2132
Spatial Bounding Box Coordinates
N: 16.625
S: 16.621833
E: 59.861667
W: 59.796
Spatial Coverage Map
General Documentation
Associated Resources
  • Climatically linked oscillations in Arabian Sea denitrification over the past 1 m.y.: Implications for the marine N cycle
    • Associated Reference published 1999
      Altabet, M.A., D.W. Murray, and W.L. Prell, 1999: Climatically linked oscillations in Arabian Sea denitrification over the past 1 m.y.: Implications for the marine N cycle. Paleoceanography, 14, 732-743, 10.1029/1999PA900035
Publication Dates
  • publication: 1999-07-01
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress StatusComplete - production of the data has been completed
Data Update Frequency Data update frequency not available
Supplemental Information
ABSTRACT SUPPLIED BY ORIGINATOR: Water column and core-top δ15N data show that Arabian Sea denitrification produces large nitrogen isotopic enrichments that are regionally recorded with fidelity in the sediments. These results facilitate interpretation of a 1 m.y. δ15N record for Ocean Drilling Program site 722B on the Owen Ridge in terms of climatically linked oscillations in denitrification at the major orbital periods. As at present, denitrification was greatest during interglacial periods and, apparently, was not active during most glacial intervals. Cross-spectral analysis of δ15N with foraminiferal δ18O (global climate/sea level index) and lithogenic grain size (monsoon strength index) suggests forcings by changes in hydrography and productivity acting through the extent and intensity of the oxygen minimum zone. The data suggest that denitrification may be an internal forcing mechanism for climate change during major glacial/interglacial transitions through influence on marine N inventory and atmospheric CO2. However, compensation or amplification may occur from other sinks (sediment denitrification) or sources (nitrogen fixation).
PurposeRecords of past climate and ocean circulation derived from marine sediments. Parameter keywords describe what was measured in this dataset. Additional summary information can be found in the abstracts of papers listed in the dataset citations.
Dataset Citation
  • Cite as: Altabet, M.A.; Murray, D.W.; Prell, W.L. (1999-07-01): NOAA/WDS Paleoclimatology - Arabian Sea denitrification during the past 1 Ma. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/n8gg-4d63. Accessed [date].
  • Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site.
Cited Authors
  • Altabet, M.A.
  • Murray, D.W.
  • Prell, W.L.
Originators
  • Altabet, M.A.
  • Murray, D.W.
  • Prell, W.L.
Publishers
  • NOAA National Centers for Environmental Information
Theme keywordsGlobal Change Master Directory (GCMD) Science Keywords
  • Earth Science > Paleoclimate > Ocean/Lake Records
  • Earth Science > Climate Indicators > Paleoclimate Indicators > Ocean/Lake Records
Global Change Master Directory (GCMD) Science Keywords
  • earth science > paleoclimate > paleoceanography
  • earth science > paleoclimate > paleoceanography
  • earth science > paleoclimate > paleoceanography
  • earth science > paleoclimate > paleoceanography
  • earth science > paleoclimate > paleocean > age control
  • earth science > paleoclimate > paleocean > geochemistry
  • earth science > paleoclimate > paleocean > nitrogen isotopes
Paleoenvironmental Standard Terms (PaST) Thesaurus
  • What: nitrogen; Material: sediment
  • What: age; Material: null
  • What: depth; Material: null
  • What: delta 15N; Material: null
Data Center keywordsGlobal Change Master Directory (GCMD) Data Center Keywords
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Place keywords
  • Ocean > Indian Ocean > RC27-61 > LATITUDE 16.625 > LONGITUDE 59.861667
  • Ocean > Indian Ocean > ODP 722B > LATITUDE 16.621833 > LONGITUDE 59.796
Use Constraints
  • Cite as: Altabet, M.A.; Murray, D.W.; Prell, W.L. (1999-07-01): NOAA/WDS Paleoclimatology - Arabian Sea denitrification during the past 1 Ma. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/n8gg-4d63. Accessed [date].
  • Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
  • Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site.
Access Constraints
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
  • None
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Last Modified: 2024-01-17
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